过去总是紧张的，未来才是完美的。

想象力比知识更重要。

If you loan someone $20 and you never see them again. That makes it worth $20. 

We are never the same with others as when we are alone. We are different, even when we are in the dark.

The most exciting, challenging and significant relationship of all is the one you have with yourself.

Never underestimate the power of a team that believes in a shared vision.

"The best ideas come when you're not trying too hard."

我们会死。那可能是生命的意义。但我们使用语言。那可能是我们生命的尺度。

Success is not measured by profits alone, but by the positive impact we leave on society.

数学家的工作永无止境；总有新的问题要问，新的谜题要解。